Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

Pull networking updates from Jakub Kicinski:
 "Core:

   - Add dedicated kmem_cache for typical/small skb->head, avoid having
     to access struct page at kfree time, and improve memory use.

   - Introduce sysctl to set default RPS configuration for new netdevs.

   - Define Netlink protocol specification format which can be used to
     describe messages used by each family and auto-generate parsers.
     Add tools for generating kernel data structures and uAPI headers.

   - Expose all net/core sysctls inside netns.

   - Remove 4s sleep in netpoll if carrier is instantly detected on
     boot.

   - Add configurable limit of MDB entries per port, and port-vlan.

   - Continue populating drop reasons throughout the stack.

   - Retire a handful of legacy Qdiscs and classifiers.

  Protocols:

   - Support IPv4 big TCP (TSO frames larger than 64kB).

   - Add IP_LOCAL_PORT_RANGE socket option, to control local port range
     on socket by socket basis.

   - Track and report in procfs number of MPTCP sockets used.

   - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
     manager.

   - IPv6: don't check net.ipv6.route.max_size and rely on garbage
     collection to free memory (similarly to IPv4).

   - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).

   - ICMP: add per-rate limit counters.

   - Add support for user scanning requests in ieee802154.

   - Remove static WEP support.

   - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
     reporting.

   - WiFi 7 EHT channel puncturing support (client & AP).

  BPF:

   - Add a rbtree data structure following the "next-gen data structure"
     precedent set by recently added linked list, that is, by using
     kfunc + kptr instead of adding a new BPF map type.

   - Expose XDP hints via kfuncs with initial support for RX hash and
     timestamp metadata.

   - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
     better support decap on GRE tunnel devices not operating in collect
     metadata.

   - Improve x86 JIT's codegen for PROBE_MEM runtime error checks.

   - Remove the need for trace_printk_lock for bpf_trace_printk and
     bpf_trace_vprintk helpers.

   - Extend libbpf's bpf_tracing.h support for tracing arguments of
     kprobes/uprobes and syscall as a special case.

   - Significantly reduce the search time for module symbols by
     livepatch and BPF.

   - Enable cpumasks to be used as kptrs, which is useful for tracing
     programs tracking which tasks end up running on which CPUs in
     different time intervals.

   - Add support for BPF trampoline on s390x and riscv64.

   - Add capability to export the XDP features supported by the NIC.

   - Add __bpf_kfunc tag for marking kernel functions as kfuncs.

   - Add cgroup.memory=nobpf kernel parameter option to disable BPF
     memory accounting for container environments.

  Netfilter:

   - Remove the CLUSTERIP target. It has been marked as obsolete for
     years, and we still have WARN splats wrt races of the out-of-band
     /proc interface installed by this target.

   - Add 'destroy' commands to nf_tables. They are identical to the
     existing 'delete' commands, but do not return an error if the
     referenced object (set, chain, rule...) did not exist.

  Driver API:

   - Improve cpumask_local_spread() locality to help NICs set the right
     IRQ affinity on AMD platforms.

   - Separate C22 and C45 MDIO bus transactions more clearly.

   - Introduce new DCB table to control DSCP rewrite on egress.

   - Support configuration of Physical Layer Collision Avoidance (PLCA)
     Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
     shared medium Ethernet.

   - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
     preemption of low priority frames by high priority frames.

   - Add support for controlling MACSec offload using netlink SET.

   - Rework devlink instance refcounts to allow registration and
     de-registration under the instance lock. Split the code into
     multiple files, drop some of the unnecessarily granular locks and
     factor out common parts of netlink operation handling.

   - Add TX frame aggregation parameters (for USB drivers).

   - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
     messages with notifications for debug.

   - Allow offloading of UDP NEW connections via act_ct.

   - Add support for per action HW stats in TC.

   - Support hardware miss to TC action (continue processing in SW from
     a specific point in the action chain).

   - Warn if old Wireless Extension user space interface is used with
     modern cfg80211/mac80211 drivers. Do not support Wireless
     Extensions for Wi-Fi 7 devices at all. Everyone should switch to
     using nl80211 interface instead.

   - Improve the CAN bit timing configuration. Use extack to return
     error messages directly to user space, update the SJW handling,
     including the definition of a new default value that will benefit
     CAN-FD controllers, by increasing their oscillator tolerance.

  New hardware / drivers:

   - Ethernet:
      - nVidia BlueField-3 support (control traffic driver)
      - Ethernet support for imx93 SoCs
      - Motorcomm yt8531 gigabit Ethernet PHY
      - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
      - Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
      - Amlogic gxl MDIO mux

   - WiFi:
      - RealTek RTL8188EU (rtl8xxxu)
      - Qualcomm Wi-Fi 7 devices (ath12k)

   - CAN:
      - Renesas R-Car V4H

  Drivers:

   - Bluetooth:
      - Set Per Platform Antenna Gain (PPAG) for Intel controllers.

   - Ethernet NICs:
      - Intel (1G, igc):
         - support TSN / Qbv / packet scheduling features of i226 model
      - Intel (100G, ice):
         - use GNSS subsystem instead of TTY
         - multi-buffer XDP support
         - extend support for GPIO pins to E823 devices
      - nVidia/Mellanox:
         - update the shared buffer configuration on PFC commands
         - implement PTP adjphase function for HW offset control
         - TC support for Geneve and GRE with VF tunnel offload
         - more efficient crypto key management method
         - multi-port eswitch support
      - Netronome/Corigine:
         - add DCB IEEE support
         - support IPsec offloading for NFP3800
      - Freescale/NXP (enetc):
         - support XDP_REDIRECT for XDP non-linear buffers
         - improve reconfig, avoid link flap and waiting for idle
         - support MAC Merge layer
      - Other NICs:
         - sfc/ef100: add basic devlink support for ef100
         - ionic: rx_push mode operation (writing descriptors via MMIO)
         - bnxt: use the auxiliary bus abstraction for RDMA
         - r8169: disable ASPM and reset bus in case of tx timeout
         - cpsw: support QSGMII mode for J721e CPSW9G
         - cpts: support pulse-per-second output
         - ngbe: add an mdio bus driver
         - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
         - r8152: handle devices with FW with NCM support
         - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
         - virtio-net: support multi buffer XDP
         - virtio/vsock: replace virtio_vsock_pkt with sk_buff
         - tsnep: XDP support

   - Ethernet high-speed switches:
      - nVidia/Mellanox (mlxsw):
         - add support for latency TLV (in FW control messages)
      - Microchip (sparx5):
         - separate explicit and implicit traffic forwarding rules, make
           the implicit rules always active
         - add support for egress DSCP rewrite
         - IS0 VCAP support (Ingress Classification)
         - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
           etc.)
         - ES2 VCAP support (Egress Access Control)
         - support for Per-Stream Filtering and Policing (802.1Q,
           8.6.5.1)

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - add MAB (port auth) offload support
         - enable PTP receive for mv88e6390
      - NXP (ocelot):
         - support MAC Merge layer
         - support for the the vsc7512 internal copper phys
      - Microchip:
         - lan9303: convert to PHYLINK
         - lan966x: support TC flower filter statistics
         - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
         - lan937x: support Credit Based Shaper configuration
         - ksz9477: support Energy Efficient Ethernet
      - other:
         - qca8k: convert to regmap read/write API, use bulk operations
         - rswitch: Improve TX timestamp accuracy

   - Intel WiFi (iwlwifi):
      - EHT (Wi-Fi 7) rate reporting
      - STEP equalizer support: transfer some STEP (connection to radio
        on platforms with integrated wifi) related parameters from the
        BIOS to the firmware.

   - Qualcomm 802.11ax WiFi (ath11k):
      - IPQ5018 support
      - Fine Timing Measurement (FTM) responder role support
      - channel 177 support

   - MediaTek WiFi (mt76):
      - per-PHY LED support
      - mt7996: EHT (Wi-Fi 7) support
      - Wireless Ethernet Dispatch (WED) reset support
      - switch to using page pool allocator

   - RealTek WiFi (rtw89):
      - support new version of Bluetooth co-existance

   - Mobile:
      - rmnet: support TX aggregation"

* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
  page_pool: add a comment explaining the fragment counter usage
  net: ethtool: fix __ethtool_dev_mm_supported() implementation
  ethtool: pse-pd: Fix double word in comments
  xsk: add linux/vmalloc.h to xsk.c
  sefltests: netdevsim: wait for devlink instance after netns removal
  selftest: fib_tests: Always cleanup before exit
  net/mlx5e: Align IPsec ASO result memory to be as required by hardware
  net/mlx5e: TC, Set CT miss to the specific ct action instance
  net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
  net/mlx5: Refactor tc miss handling to a single function
  net/mlx5: Kconfig: Make tc offload depend on tc skb extension
  net/sched: flower: Support hardware miss to tc action
  net/sched: flower: Move filter handle initialization earlier
  net/sched: cls_api: Support hardware miss to tc action
  net/sched: Rename user cookie and act cookie
  sfc: fix builds without CONFIG_RTC_LIB
  sfc: clean up some inconsistent indentings
  net/mlx4_en: Introduce flexible array to silence overflow warning
  net: lan966x: Fix possible deadlock inside PTP
  net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
  ...

1 files changed, 1530 insertions, 0 deletions

diff --git a/drivers/net/ethernet/marvell/prestera/prestera_main.c b/drivers/net/ethernet/marvell/prestera/prestera_main.c
new file mode 100644
index 000000000..9d504142e
--- /dev/null
+++ b/drivers/net/ethernet/marvell/prestera/prestera_main.c
@@ -0,0 +1,1530 @@
+// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
+/* Copyright (c) 2019-2020 Marvell International Ltd. All rights reserved */
+
+#include <linux/etherdevice.h>
+#include <linux/jiffies.h>
+#include <linux/list.h>
+#include <linux/module.h>
+#include <linux/netdev_features.h>
+#include <linux/of.h>
+#include <linux/of_net.h>
+#include <linux/if_vlan.h>
+#include <linux/phylink.h>
+
+#include "prestera.h"
+#include "prestera_hw.h"
+#include "prestera_acl.h"
+#include "prestera_flow.h"
+#include "prestera_span.h"
+#include "prestera_rxtx.h"
+#include "prestera_devlink.h"
+#include "prestera_ethtool.h"
+#include "prestera_counter.h"
+#include "prestera_switchdev.h"
+
+#define PRESTERA_MTU_DEFAULT	1536
+
+#define PRESTERA_STATS_DELAY_MS	1000
+
+#define PRESTERA_MAC_ADDR_NUM_MAX	255
+
+static struct workqueue_struct *prestera_wq;
+static struct workqueue_struct *prestera_owq;
+
+void prestera_queue_work(struct work_struct *work)
+{
+	queue_work(prestera_owq, work);
+}
+
+void prestera_queue_delayed_work(struct delayed_work *work, unsigned long delay)
+{
+	queue_delayed_work(prestera_wq, work, delay);
+}
+
+void prestera_queue_drain(void)
+{
+	drain_workqueue(prestera_wq);
+	drain_workqueue(prestera_owq);
+}
+
+int prestera_port_learning_set(struct prestera_port *port, bool learn)
+{
+	return prestera_hw_port_learning_set(port, learn);
+}
+
+int prestera_port_uc_flood_set(struct prestera_port *port, bool flood)
+{
+	return prestera_hw_port_uc_flood_set(port, flood);
+}
+
+int prestera_port_mc_flood_set(struct prestera_port *port, bool flood)
+{
+	return prestera_hw_port_mc_flood_set(port, flood);
+}
+
+int prestera_port_br_locked_set(struct prestera_port *port, bool br_locked)
+{
+	return prestera_hw_port_br_locked_set(port, br_locked);
+}
+
+int prestera_port_pvid_set(struct prestera_port *port, u16 vid)
+{
+	enum prestera_accept_frm_type frm_type;
+	int err;
+
+	frm_type = PRESTERA_ACCEPT_FRAME_TYPE_TAGGED;
+
+	if (vid) {
+		err = prestera_hw_vlan_port_vid_set(port, vid);
+		if (err)
+			return err;
+
+		frm_type = PRESTERA_ACCEPT_FRAME_TYPE_ALL;
+	}
+
+	err = prestera_hw_port_accept_frm_type(port, frm_type);
+	if (err && frm_type == PRESTERA_ACCEPT_FRAME_TYPE_ALL)
+		prestera_hw_vlan_port_vid_set(port, port->pvid);
+
+	port->pvid = vid;
+	return 0;
+}
+
+struct prestera_port *prestera_port_find_by_hwid(struct prestera_switch *sw,
+						 u32 dev_id, u32 hw_id)
+{
+	struct prestera_port *port = NULL, *tmp;
+
+	read_lock(&sw->port_list_lock);
+	list_for_each_entry(tmp, &sw->port_list, list) {
+		if (tmp->dev_id == dev_id && tmp->hw_id == hw_id) {
+			port = tmp;
+			break;
+		}
+	}
+	read_unlock(&sw->port_list_lock);
+
+	return port;
+}
+
+struct prestera_port *prestera_find_port(struct prestera_switch *sw, u32 id)
+{
+	struct prestera_port *port = NULL, *tmp;
+
+	read_lock(&sw->port_list_lock);
+	list_for_each_entry(tmp, &sw->port_list, list) {
+		if (tmp->id == id) {
+			port = tmp;
+			break;
+		}
+	}
+	read_unlock(&sw->port_list_lock);
+
+	return port;
+}
+
+struct prestera_switch *prestera_switch_get(struct net_device *dev)
+{
+	struct prestera_port *port;
+
+	port = prestera_port_dev_lower_find(dev);
+	return port ? port->sw : NULL;
+}
+
+int prestera_port_cfg_mac_read(struct prestera_port *port,
+			       struct prestera_port_mac_config *cfg)
+{
+	*cfg = port->cfg_mac;
+	return 0;
+}
+
+int prestera_port_cfg_mac_write(struct prestera_port *port,
+				struct prestera_port_mac_config *cfg)
+{
+	int err;
+
+	err = prestera_hw_port_mac_mode_set(port, cfg->admin,
+					    cfg->mode, cfg->inband, cfg->speed,
+					    cfg->duplex, cfg->fec);
+	if (err)
+		return err;
+
+	port->cfg_mac = *cfg;
+	return 0;
+}
+
+static int prestera_port_open(struct net_device *dev)
+{
+	struct prestera_port *port = netdev_priv(dev);
+	struct prestera_port_mac_config cfg_mac;
+	int err = 0;
+
+	if (port->phy_link) {
+		phylink_start(port->phy_link);
+	} else {
+		if (port->caps.transceiver == PRESTERA_PORT_TCVR_SFP) {
+			err = prestera_port_cfg_mac_read(port, &cfg_mac);
+			if (!err) {
+				cfg_mac.admin = true;
+				err = prestera_port_cfg_mac_write(port,
+								  &cfg_mac);
+			}
+		} else {
+			port->cfg_phy.admin = true;
+			err = prestera_hw_port_phy_mode_set(port, true,
+							    port->autoneg,
+							    port->cfg_phy.mode,
+							    port->adver_link_modes,
+							    port->cfg_phy.mdix);
+		}
+	}
+
+	netif_start_queue(dev);
+
+	return err;
+}
+
+static int prestera_port_close(struct net_device *dev)
+{
+	struct prestera_port *port = netdev_priv(dev);
+	struct prestera_port_mac_config cfg_mac;
+	int err = 0;
+
+	netif_stop_queue(dev);
+
+	if (port->phy_link) {
+		phylink_stop(port->phy_link);
+		phylink_disconnect_phy(port->phy_link);
+		err = prestera_port_cfg_mac_read(port, &cfg_mac);
+		if (!err) {
+			cfg_mac.admin = false;
+			prestera_port_cfg_mac_write(port, &cfg_mac);
+		}
+	} else {
+		if (port->caps.transceiver == PRESTERA_PORT_TCVR_SFP) {
+			err = prestera_port_cfg_mac_read(port, &cfg_mac);
+			if (!err) {
+				cfg_mac.admin = false;
+				prestera_port_cfg_mac_write(port, &cfg_mac);
+			}
+		} else {
+			port->cfg_phy.admin = false;
+			err = prestera_hw_port_phy_mode_set(port, false, port->autoneg,
+							    port->cfg_phy.mode,
+							    port->adver_link_modes,
+							    port->cfg_phy.mdix);
+		}
+	}
+
+	return err;
+}
+
+static void
+prestera_port_mac_state_cache_read(struct prestera_port *port,
+				   struct prestera_port_mac_state *state)
+{
+	spin_lock(&port->state_mac_lock);
+	*state = port->state_mac;
+	spin_unlock(&port->state_mac_lock);
+}
+
+static void
+prestera_port_mac_state_cache_write(struct prestera_port *port,
+				    struct prestera_port_mac_state *state)
+{
+	spin_lock(&port->state_mac_lock);
+	port->state_mac = *state;
+	spin_unlock(&port->state_mac_lock);
+}
+
+static struct prestera_port *prestera_pcs_to_port(struct phylink_pcs *pcs)
+{
+	return container_of(pcs, struct prestera_port, phylink_pcs);
+}
+
+static void prestera_mac_config(struct phylink_config *config,
+				unsigned int an_mode,
+				const struct phylink_link_state *state)
+{
+}
+
+static void prestera_mac_link_down(struct phylink_config *config,
+				   unsigned int mode, phy_interface_t interface)
+{
+	struct net_device *ndev = to_net_dev(config->dev);
+	struct prestera_port *port = netdev_priv(ndev);
+	struct prestera_port_mac_state state_mac;
+
+	/* Invalidate. Parameters will update on next link event. */
+	memset(&state_mac, 0, sizeof(state_mac));
+	state_mac.valid = false;
+	prestera_port_mac_state_cache_write(port, &state_mac);
+}
+
+static void prestera_mac_link_up(struct phylink_config *config,
+				 struct phy_device *phy,
+				 unsigned int mode, phy_interface_t interface,
+				 int speed, int duplex,
+				 bool tx_pause, bool rx_pause)
+{
+}
+
+static struct phylink_pcs *
+prestera_mac_select_pcs(struct phylink_config *config,
+			phy_interface_t interface)
+{
+	struct net_device *dev = to_net_dev(config->dev);
+	struct prestera_port *port = netdev_priv(dev);
+
+	return &port->phylink_pcs;
+}
+
+static void prestera_pcs_get_state(struct phylink_pcs *pcs,
+				   struct phylink_link_state *state)
+{
+	struct prestera_port *port = container_of(pcs, struct prestera_port,
+						  phylink_pcs);
+	struct prestera_port_mac_state smac;
+
+	prestera_port_mac_state_cache_read(port, &smac);
+
+	if (smac.valid) {
+		state->link = smac.oper ? 1 : 0;
+		/* AN is completed, when port is up */
+		state->an_complete = (smac.oper && port->autoneg) ? 1 : 0;
+		state->speed = smac.speed;
+		state->duplex = smac.duplex;
+	} else {
+		state->link = 0;
+		state->an_complete = 0;
+	}
+}
+
+static int prestera_pcs_config(struct phylink_pcs *pcs,
+			       unsigned int mode,
+			       phy_interface_t interface,
+			       const unsigned long *advertising,
+			       bool permit_pause_to_mac)
+{
+	struct prestera_port *port = prestera_pcs_to_port(pcs);
+	struct prestera_port_mac_config cfg_mac;
+	int err;
+
+	err = prestera_port_cfg_mac_read(port, &cfg_mac);
+	if (err)
+		return err;
+
+	cfg_mac.admin = true;
+	cfg_mac.fec = PRESTERA_PORT_FEC_OFF;
+
+	switch (interface) {
+	case PHY_INTERFACE_MODE_10GBASER:
+		cfg_mac.speed = SPEED_10000;
+		cfg_mac.inband = 0;
+		cfg_mac.mode = PRESTERA_MAC_MODE_SR_LR;
+		break;
+	case PHY_INTERFACE_MODE_2500BASEX:
+		cfg_mac.speed = SPEED_2500;
+		cfg_mac.duplex = DUPLEX_FULL;
+		cfg_mac.inband = test_bit(ETHTOOL_LINK_MODE_Autoneg_BIT,
+					  advertising);
+		cfg_mac.mode = PRESTERA_MAC_MODE_SGMII;
+		break;
+	case PHY_INTERFACE_MODE_SGMII:
+		cfg_mac.inband = 1;
+		cfg_mac.mode = PRESTERA_MAC_MODE_SGMII;
+		break;
+	case PHY_INTERFACE_MODE_1000BASEX:
+	default:
+		cfg_mac.speed = SPEED_1000;
+		cfg_mac.duplex = DUPLEX_FULL;
+		cfg_mac.inband = test_bit(ETHTOOL_LINK_MODE_Autoneg_BIT,
+					  advertising);
+		cfg_mac.mode = PRESTERA_MAC_MODE_1000BASE_X;
+		break;
+	}
+
+	err = prestera_port_cfg_mac_write(port, &cfg_mac);
+	if (err)
+		return err;
+
+	return 0;
+}
+
+static void prestera_pcs_an_restart(struct phylink_pcs *pcs)
+{
+	/* TODO: add 1000basex AN restart support
+	 * (Currently FW has no support for 1000baseX AN restart, but it will in the future,
+	 * so as for now the function would stay empty.)
+	 */
+}
+
+static const struct phylink_mac_ops prestera_mac_ops = {
+	.mac_select_pcs = prestera_mac_select_pcs,
+	.mac_config = prestera_mac_config,
+	.mac_link_down = prestera_mac_link_down,
+	.mac_link_up = prestera_mac_link_up,
+};
+
+static const struct phylink_pcs_ops prestera_pcs_ops = {
+	.pcs_get_state = prestera_pcs_get_state,
+	.pcs_config = prestera_pcs_config,
+	.pcs_an_restart = prestera_pcs_an_restart,
+};
+
+static int prestera_port_sfp_bind(struct prestera_port *port)
+{
+	struct prestera_switch *sw = port->sw;
+	struct device_node *ports, *node;
+	struct fwnode_handle *fwnode;
+	struct phylink *phy_link;
+	int err;
+
+	if (!sw->np)
+		return 0;
+
+	of_node_get(sw->np);
+	ports = of_find_node_by_name(sw->np, "ports");
+
+	for_each_child_of_node(ports, node) {
+		int num;
+
+		err = of_property_read_u32(node, "prestera,port-num", &num);
+		if (err) {
+			dev_err(sw->dev->dev,
+				"device node %pOF has no valid reg property: %d\n",
+				node, err);
+			goto out;
+		}
+
+		if (port->fp_id != num)
+			continue;
+
+		port->phylink_pcs.ops = &prestera_pcs_ops;
+
+		port->phy_config.dev = &port->dev->dev;
+		port->phy_config.type = PHYLINK_NETDEV;
+
+		fwnode = of_fwnode_handle(node);
+
+		__set_bit(PHY_INTERFACE_MODE_10GBASER,
+			  port->phy_config.supported_interfaces);
+		__set_bit(PHY_INTERFACE_MODE_2500BASEX,
+			  port->phy_config.supported_interfaces);
+		__set_bit(PHY_INTERFACE_MODE_SGMII,
+			  port->phy_config.supported_interfaces);
+		__set_bit(PHY_INTERFACE_MODE_1000BASEX,
+			  port->phy_config.supported_interfaces);
+
+		port->phy_config.mac_capabilities =
+			MAC_1000 | MAC_2500FD | MAC_10000FD;
+
+		phy_link = phylink_create(&port->phy_config, fwnode,
+					  PHY_INTERFACE_MODE_INTERNAL,
+					  &prestera_mac_ops);
+		if (IS_ERR(phy_link)) {
+			netdev_err(port->dev, "failed to create phylink\n");
+			err = PTR_ERR(phy_link);
+			goto out;
+		}
+
+		port->phy_link = phy_link;
+		break;
+	}
+
+out:
+	of_node_put(node);
+	of_node_put(ports);
+	return err;
+}
+
+static int prestera_port_sfp_unbind(struct prestera_port *port)
+{
+	if (port->phy_link)
+		phylink_destroy(port->phy_link);
+
+	return 0;
+}
+
+static netdev_tx_t prestera_port_xmit(struct sk_buff *skb,
+				      struct net_device *dev)
+{
+	return prestera_rxtx_xmit(netdev_priv(dev), skb);
+}
+
+int prestera_is_valid_mac_addr(struct prestera_port *port, const u8 *addr)
+{
+	if (!is_valid_ether_addr(addr))
+		return -EADDRNOTAVAIL;
+
+	/* firmware requires that port's MAC address contains first 5 bytes
+	 * of the base MAC address
+	 */
+	if (memcmp(port->sw->base_mac, addr, ETH_ALEN - 1))
+		return -EINVAL;
+
+	return 0;
+}
+
+static int prestera_port_set_mac_address(struct net_device *dev, void *p)
+{
+	struct prestera_port *port = netdev_priv(dev);
+	struct sockaddr *addr = p;
+	int err;
+
+	err = prestera_is_valid_mac_addr(port, addr->sa_data);
+	if (err)
+		return err;
+
+	err = prestera_hw_port_mac_set(port, addr->sa_data);
+	if (err)
+		return err;
+
+	eth_hw_addr_set(dev, addr->sa_data);
+
+	return 0;
+}
+
+static int prestera_port_change_mtu(struct net_device *dev, int mtu)
+{
+	struct prestera_port *port = netdev_priv(dev);
+	int err;
+
+	err = prestera_hw_port_mtu_set(port, mtu);
+	if (err)
+		return err;
+
+	dev->mtu = mtu;
+
+	return 0;
+}
+
+static void prestera_port_get_stats64(struct net_device *dev,
+				      struct rtnl_link_stats64 *stats)
+{
+	struct prestera_port *port = netdev_priv(dev);
+	struct prestera_port_stats *port_stats = &port->cached_hw_stats.stats;
+
+	stats->rx_packets = port_stats->broadcast_frames_received +
+				port_stats->multicast_frames_received +
+				port_stats->unicast_frames_received;
+
+	stats->tx_packets = port_stats->broadcast_frames_sent +
+				port_stats->multicast_frames_sent +
+				port_stats->unicast_frames_sent;
+
+	stats->rx_bytes = port_stats->good_octets_received;
+
+	stats->tx_bytes = port_stats->good_octets_sent;
+
+	stats->rx_errors = port_stats->rx_error_frame_received;
+	stats->tx_errors = port_stats->mac_trans_error;
+
+	stats->rx_dropped = port_stats->buffer_overrun;
+	stats->tx_dropped = 0;
+
+	stats->multicast = port_stats->multicast_frames_received;
+	stats->collisions = port_stats->excessive_collision;
+
+	stats->rx_crc_errors = port_stats->bad_crc;
+}
+
+static void prestera_port_get_hw_stats(struct prestera_port *port)
+{
+	prestera_hw_port_stats_get(port, &port->cached_hw_stats.stats);
+}
+
+static void prestera_port_stats_update(struct work_struct *work)
+{
+	struct prestera_port *port =
+		container_of(work, struct prestera_port,
+			     cached_hw_stats.caching_dw.work);
+
+	prestera_port_get_hw_stats(port);
+
+	queue_delayed_work(prestera_wq, &port->cached_hw_stats.caching_dw,
+			   msecs_to_jiffies(PRESTERA_STATS_DELAY_MS));
+}
+
+static int prestera_port_setup_tc(struct net_device *dev,
+				  enum tc_setup_type type,
+				  void *type_data)
+{
+	struct prestera_port *port = netdev_priv(dev);
+
+	switch (type) {
+	case TC_SETUP_BLOCK:
+		return prestera_flow_block_setup(port, type_data);
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
+static const struct net_device_ops prestera_netdev_ops = {
+	.ndo_open = prestera_port_open,
+	.ndo_stop = prestera_port_close,
+	.ndo_start_xmit = prestera_port_xmit,
+	.ndo_setup_tc = prestera_port_setup_tc,
+	.ndo_change_mtu = prestera_port_change_mtu,
+	.ndo_get_stats64 = prestera_port_get_stats64,
+	.ndo_set_mac_address = prestera_port_set_mac_address,
+};
+
+int prestera_port_autoneg_set(struct prestera_port *port, u64 link_modes)
+{
+	int err;
+
+	if (port->autoneg && port->adver_link_modes == link_modes)
+		return 0;
+
+	err = prestera_hw_port_phy_mode_set(port, port->cfg_phy.admin,
+					    true, 0, link_modes,
+					    port->cfg_phy.mdix);
+	if (err)
+		return err;
+
+	port->adver_fec = BIT(PRESTERA_PORT_FEC_OFF);
+	port->adver_link_modes = link_modes;
+	port->cfg_phy.mode = 0;
+	port->autoneg = true;
+
+	return 0;
+}
+
+static void prestera_port_list_add(struct prestera_port *port)
+{
+	write_lock(&port->sw->port_list_lock);
+	list_add(&port->list, &port->sw->port_list);
+	write_unlock(&port->sw->port_list_lock);
+}
+
+static void prestera_port_list_del(struct prestera_port *port)
+{
+	write_lock(&port->sw->port_list_lock);
+	list_del(&port->list);
+	write_unlock(&port->sw->port_list_lock);
+}
+
+static int prestera_port_create(struct prestera_switch *sw, u32 id)
+{
+	struct prestera_port_mac_config cfg_mac;
+	struct prestera_port *port;
+	struct net_device *dev;
+	int err;
+
+	dev = alloc_etherdev(sizeof(*port));
+	if (!dev)
+		return -ENOMEM;
+
+	port = netdev_priv(dev);
+
+	INIT_LIST_HEAD(&port->vlans_list);
+	port->pvid = PRESTERA_DEFAULT_VID;
+	port->lag = NULL;
+	port->dev = dev;
+	port->id = id;
+	port->sw = sw;
+
+	spin_lock_init(&port->state_mac_lock);
+
+	err = prestera_hw_port_info_get(port, &port->dev_id, &port->hw_id,
+					&port->fp_id);
+	if (err) {
+		dev_err(prestera_dev(sw), "Failed to get port(%u) info\n", id);
+		goto err_port_info_get;
+	}
+
+	err = prestera_devlink_port_register(port);
+	if (err)
+		goto err_dl_port_register;
+
+	dev->features |= NETIF_F_NETNS_LOCAL | NETIF_F_HW_TC;
+	dev->netdev_ops = &prestera_netdev_ops;
+	dev->ethtool_ops = &prestera_ethtool_ops;
+	SET_NETDEV_DEV(dev, sw->dev->dev);
+	SET_NETDEV_DEVLINK_PORT(dev, &port->dl_port);
+
+	if (port->caps.transceiver != PRESTERA_PORT_TCVR_SFP)
+		netif_carrier_off(dev);
+
+	dev->mtu = min_t(unsigned int, sw->mtu_max, PRESTERA_MTU_DEFAULT);
+	dev->min_mtu = sw->mtu_min;
+	dev->max_mtu = sw->mtu_max;
+
+	err = prestera_hw_port_mtu_set(port, dev->mtu);
+	if (err) {
+		dev_err(prestera_dev(sw), "Failed to set port(%u) mtu(%d)\n",
+			id, dev->mtu);
+		goto err_port_init;
+	}
+
+	if (port->fp_id >= PRESTERA_MAC_ADDR_NUM_MAX) {
+		err = -EINVAL;
+		goto err_port_init;
+	}
+
+	eth_hw_addr_gen(dev, sw->base_mac, port->fp_id);
+	/* firmware requires that port's MAC address consist of the first
+	 * 5 bytes of the base MAC address
+	 */
+	if (memcmp(dev->dev_addr, sw->base_mac, ETH_ALEN - 1)) {
+		dev_warn(prestera_dev(sw), "Port MAC address wraps for port(%u)\n", id);
+		dev_addr_mod(dev, 0, sw->base_mac, ETH_ALEN - 1);
+	}
+
+	err = prestera_hw_port_mac_set(port, dev->dev_addr);
+	if (err) {
+		dev_err(prestera_dev(sw), "Failed to set port(%u) mac addr\n", id);
+		goto err_port_init;
+	}
+
+	err = prestera_hw_port_cap_get(port, &port->caps);
+	if (err) {
+		dev_err(prestera_dev(sw), "Failed to get port(%u) caps\n", id);
+		goto err_port_init;
+	}
+
+	port->adver_link_modes = port->caps.supp_link_modes;
+	port->adver_fec = 0;
+	port->autoneg = true;
+
+	/* initialize config mac */
+	if (port->caps.transceiver != PRESTERA_PORT_TCVR_SFP) {
+		cfg_mac.admin = true;
+		cfg_mac.mode = PRESTERA_MAC_MODE_INTERNAL;
+	} else {
+		cfg_mac.admin = false;
+		cfg_mac.mode = PRESTERA_MAC_MODE_MAX;
+	}
+	cfg_mac.inband = 0;
+	cfg_mac.speed = 0;
+	cfg_mac.duplex = DUPLEX_UNKNOWN;
+	cfg_mac.fec = PRESTERA_PORT_FEC_OFF;
+
+	err = prestera_port_cfg_mac_write(port, &cfg_mac);
+	if (err) {
+		dev_err(prestera_dev(sw),
+			"Failed to set port(%u) mac mode\n", id);
+		goto err_port_init;
+	}
+
+	/* initialize config phy (if this is inegral) */
+	if (port->caps.transceiver != PRESTERA_PORT_TCVR_SFP) {
+		port->cfg_phy.mdix = ETH_TP_MDI_AUTO;
+		port->cfg_phy.admin = false;
+		err = prestera_hw_port_phy_mode_set(port,
+						    port->cfg_phy.admin,
+						    false, 0, 0,
+						    port->cfg_phy.mdix);
+		if (err) {
+			dev_err(prestera_dev(sw),
+				"Failed to set port(%u) phy mode\n", id);
+			goto err_port_init;
+		}
+	}
+
+	err = prestera_rxtx_port_init(port);
+	if (err)
+		goto err_port_init;
+
+	INIT_DELAYED_WORK(&port->cached_hw_stats.caching_dw,
+			  &prestera_port_stats_update);
+
+	prestera_port_list_add(port);
+
+	err = register_netdev(dev);
+	if (err)
+		goto err_register_netdev;
+
+	err = prestera_port_sfp_bind(port);
+	if (err)
+		goto err_sfp_bind;
+
+	return 0;
+
+err_sfp_bind:
+	unregister_netdev(dev);
+err_register_netdev:
+	prestera_port_list_del(port);
+err_port_init:
+	prestera_devlink_port_unregister(port);
+err_dl_port_register:
+err_port_info_get:
+	free_netdev(dev);
+	return err;
+}
+
+static void prestera_port_destroy(struct prestera_port *port)
+{
+	struct net_device *dev = port->dev;
+
+	cancel_delayed_work_sync(&port->cached_hw_stats.caching_dw);
+	unregister_netdev(dev);
+	prestera_port_list_del(port);
+	prestera_devlink_port_unregister(port);
+	free_netdev(dev);
+}
+
+static void prestera_destroy_ports(struct prestera_switch *sw)
+{
+	struct prestera_port *port, *tmp;
+
+	list_for_each_entry_safe(port, tmp, &sw->port_list, list)
+		prestera_port_destroy(port);
+}
+
+static int prestera_create_ports(struct prestera_switch *sw)
+{
+	struct prestera_port *port, *tmp;
+	u32 port_idx;
+	int err;
+
+	for (port_idx = 0; port_idx < sw->port_count; port_idx++) {
+		err = prestera_port_create(sw, port_idx);
+		if (err)
+			goto err_port_create;
+	}
+
+	return 0;
+
+err_port_create:
+	list_for_each_entry_safe(port, tmp, &sw->port_list, list) {
+		prestera_port_sfp_unbind(port);
+		prestera_port_destroy(port);
+	}
+
+	return err;
+}
+
+static void prestera_port_handle_event(struct prestera_switch *sw,
+				       struct prestera_event *evt, void *arg)
+{
+	struct prestera_port_mac_state smac;
+	struct prestera_port_event *pevt;
+	struct delayed_work *caching_dw;
+	struct prestera_port *port;
+
+	if (evt->id == PRESTERA_PORT_EVENT_MAC_STATE_CHANGED) {
+		pevt = &evt->port_evt;
+		port = prestera_find_port(sw, pevt->port_id);
+		if (!port || !port->dev)
+			return;
+
+		caching_dw = &port->cached_hw_stats.caching_dw;
+
+		memset(&smac, 0, sizeof(smac));
+		smac.valid = true;
+		smac.oper = pevt->data.mac.oper;
+		if (smac.oper) {
+			smac.mode = pevt->data.mac.mode;
+			smac.speed = pevt->data.mac.speed;
+			smac.duplex = pevt->data.mac.duplex;
+			smac.fc = pevt->data.mac.fc;
+			smac.fec = pevt->data.mac.fec;
+		}
+		prestera_port_mac_state_cache_write(port, &smac);
+
+		if (port->state_mac.oper) {
+			if (port->phy_link)
+				phylink_mac_change(port->phy_link, true);
+			else
+				netif_carrier_on(port->dev);
+
+			if (!delayed_work_pending(caching_dw))
+				queue_delayed_work(prestera_wq, caching_dw, 0);
+		} else {
+			if (port->phy_link)
+				phylink_mac_change(port->phy_link, false);
+			else if (netif_running(port->dev) && netif_carrier_ok(port->dev))
+				netif_carrier_off(port->dev);
+
+			if (delayed_work_pending(caching_dw))
+				cancel_delayed_work(caching_dw);
+		}
+	}
+}
+
+static int prestera_event_handlers_register(struct prestera_switch *sw)
+{
+	return prestera_hw_event_handler_register(sw, PRESTERA_EVENT_TYPE_PORT,
+						  prestera_port_handle_event,
+						  NULL);
+}
+
+static void prestera_event_handlers_unregister(struct prestera_switch *sw)
+{
+	prestera_hw_event_handler_unregister(sw, PRESTERA_EVENT_TYPE_PORT,
+					     prestera_port_handle_event);
+}
+
+static int prestera_switch_set_base_mac_addr(struct prestera_switch *sw)
+{
+	int ret;
+
+	if (sw->np)
+		ret = of_get_mac_address(sw->np, sw->base_mac);
+	if (!is_valid_ether_addr(sw->base_mac) || ret) {
+		eth_random_addr(sw->base_mac);
+		dev_info(prestera_dev(sw), "using random base mac address\n");
+	}
+
+	return prestera_hw_switch_mac_set(sw, sw->base_mac);
+}
+
+struct prestera_lag *prestera_lag_by_id(struct prestera_switch *sw, u16 id)
+{
+	return id < sw->lag_max ? &sw->lags[id] : NULL;
+}
+
+static struct prestera_lag *prestera_lag_by_dev(struct prestera_switch *sw,
+						struct net_device *dev)
+{
+	struct prestera_lag *lag;
+	u16 id;
+
+	for (id = 0; id < sw->lag_max; id++) {
+		lag = &sw->lags[id];
+		if (lag->dev == dev)
+			return lag;
+	}
+
+	return NULL;
+}
+
+int prestera_lag_id(struct prestera_switch *sw,
+		    struct net_device *lag_dev, u16 *lag_id)
+{
+	struct prestera_lag *lag;
+	int free_id = -1;
+	int id;
+
+	for (id = 0; id < sw->lag_max; id++) {
+		lag = prestera_lag_by_id(sw, id);
+		if (lag->member_count) {
+			if (lag->dev == lag_dev) {
+				*lag_id = id;
+				return 0;
+			}
+		} else if (free_id < 0) {
+			free_id = id;
+		}
+	}
+	if (free_id < 0)
+		return -ENOSPC;
+	*lag_id = free_id;
+	return 0;
+}
+
+static struct prestera_lag *prestera_lag_create(struct prestera_switch *sw,
+						struct net_device *lag_dev)
+{
+	struct prestera_lag *lag = NULL;
+	u16 id;
+
+	for (id = 0; id < sw->lag_max; id++) {
+		lag = &sw->lags[id];
+		if (!lag->dev)
+			break;
+	}
+	if (lag) {
+		INIT_LIST_HEAD(&lag->members);
+		lag->dev = lag_dev;
+	}
+
+	return lag;
+}
+
+static void prestera_lag_destroy(struct prestera_switch *sw,
+				 struct prestera_lag *lag)
+{
+	WARN_ON(!list_empty(&lag->members));
+	lag->member_count = 0;
+	lag->dev = NULL;
+}
+
+static int prestera_lag_port_add(struct prestera_port *port,
+				 struct net_device *lag_dev)
+{
+	struct prestera_switch *sw = port->sw;
+	struct prestera_lag *lag;
+	int err;
+
+	lag = prestera_lag_by_dev(sw, lag_dev);
+	if (!lag) {
+		lag = prestera_lag_create(sw, lag_dev);
+		if (!lag)
+			return -ENOSPC;
+	}
+
+	if (lag->member_count >= sw->lag_member_max)
+		return -ENOSPC;
+
+	err = prestera_hw_lag_member_add(port, lag->lag_id);
+	if (err) {
+		if (!lag->member_count)
+			prestera_lag_destroy(sw, lag);
+		return err;
+	}
+
+	list_add(&port->lag_member, &lag->members);
+	lag->member_count++;
+	port->lag = lag;
+
+	return 0;
+}
+
+static int prestera_lag_port_del(struct prestera_port *port)
+{
+	struct prestera_switch *sw = port->sw;
+	struct prestera_lag *lag = port->lag;
+	int err;
+
+	if (!lag || !lag->member_count)
+		return -EINVAL;
+
+	err = prestera_hw_lag_member_del(port, lag->lag_id);
+	if (err)
+		return err;
+
+	list_del(&port->lag_member);
+	lag->member_count--;
+	port->lag = NULL;
+
+	if (netif_is_bridge_port(lag->dev)) {
+		struct net_device *br_dev;
+
+		br_dev = netdev_master_upper_dev_get(lag->dev);
+
+		prestera_bridge_port_leave(br_dev, port);
+	}
+
+	if (!lag->member_count)
+		prestera_lag_destroy(sw, lag);
+
+	return 0;
+}
+
+bool prestera_port_is_lag_member(const struct prestera_port *port)
+{
+	return !!port->lag;
+}
+
+u16 prestera_port_lag_id(const struct prestera_port *port)
+{
+	return port->lag->lag_id;
+}
+
+static int prestera_lag_init(struct prestera_switch *sw)
+{
+	u16 id;
+
+	sw->lags = kcalloc(sw->lag_max, sizeof(*sw->lags), GFP_KERNEL);
+	if (!sw->lags)
+		return -ENOMEM;
+
+	for (id = 0; id < sw->lag_max; id++)
+		sw->lags[id].lag_id = id;
+
+	return 0;
+}
+
+static void prestera_lag_fini(struct prestera_switch *sw)
+{
+	u8 idx;
+
+	for (idx = 0; idx < sw->lag_max; idx++)
+		WARN_ON(sw->lags[idx].member_count);
+
+	kfree(sw->lags);
+}
+
+bool prestera_netdev_check(const struct net_device *dev)
+{
+	return dev->netdev_ops == &prestera_netdev_ops;
+}
+
+static int prestera_lower_dev_walk(struct net_device *dev,
+				   struct netdev_nested_priv *priv)
+{
+	struct prestera_port **pport = (struct prestera_port **)priv->data;
+
+	if (prestera_netdev_check(dev)) {
+		*pport = netdev_priv(dev);
+		return 1;
+	}
+
+	return 0;
+}
+
+struct prestera_port *prestera_port_dev_lower_find(struct net_device *dev)
+{
+	struct prestera_port *port = NULL;
+	struct netdev_nested_priv priv = {
+		.data = (void *)&port,
+	};
+
+	if (prestera_netdev_check(dev))
+		return netdev_priv(dev);
+
+	netdev_walk_all_lower_dev(dev, prestera_lower_dev_walk, &priv);
+
+	return port;
+}
+
+static int prestera_netdev_port_lower_event(struct net_device *dev,
+					    unsigned long event, void *ptr)
+{
+	struct netdev_notifier_changelowerstate_info *info = ptr;
+	struct netdev_lag_lower_state_info *lower_state_info;
+	struct prestera_port *port = netdev_priv(dev);
+	bool enabled;
+
+	if (!netif_is_lag_port(dev))
+		return 0;
+	if (!prestera_port_is_lag_member(port))
+		return 0;
+
+	lower_state_info = info->lower_state_info;
+	enabled = lower_state_info->link_up && lower_state_info->tx_enabled;
+
+	return prestera_hw_lag_member_enable(port, port->lag->lag_id, enabled);
+}
+
+static bool prestera_lag_master_check(struct net_device *lag_dev,
+				      struct netdev_lag_upper_info *info,
+				      struct netlink_ext_ack *ext_ack)
+{
+	if (info->tx_type != NETDEV_LAG_TX_TYPE_HASH) {
+		NL_SET_ERR_MSG_MOD(ext_ack, "Unsupported LAG Tx type");
+		return false;
+	}
+
+	return true;
+}
+
+static int prestera_netdev_port_event(struct net_device *lower,
+				      struct net_device *dev,
+				      unsigned long event, void *ptr)
+{
+	struct netdev_notifier_info *info = ptr;
+	struct netdev_notifier_changeupper_info *cu_info;
+	struct prestera_port *port = netdev_priv(dev);
+	struct netlink_ext_ack *extack;
+	struct net_device *upper;
+
+	extack = netdev_notifier_info_to_extack(info);
+	cu_info = container_of(info,
+			       struct netdev_notifier_changeupper_info,
+			       info);
+
+	switch (event) {
+	case NETDEV_PRECHANGEUPPER:
+		upper = cu_info->upper_dev;
+		if (!netif_is_bridge_master(upper) &&
+		    !netif_is_lag_master(upper)) {
+			NL_SET_ERR_MSG_MOD(extack, "Unknown upper device type");
+			return -EINVAL;
+		}
+
+		if (!cu_info->linking)
+			break;
+
+		if (netdev_has_any_upper_dev(upper)) {
+			NL_SET_ERR_MSG_MOD(extack, "Upper device is already enslaved");
+			return -EINVAL;
+		}
+
+		if (netif_is_lag_master(upper) &&
+		    !prestera_lag_master_check(upper, cu_info->upper_info, extack))
+			return -EOPNOTSUPP;
+		if (netif_is_lag_master(upper) && vlan_uses_dev(dev)) {
+			NL_SET_ERR_MSG_MOD(extack,
+					   "Master device is a LAG master and port has a VLAN");
+			return -EINVAL;
+		}
+		if (netif_is_lag_port(dev) && is_vlan_dev(upper) &&
+		    !netif_is_lag_master(vlan_dev_real_dev(upper))) {
+			NL_SET_ERR_MSG_MOD(extack,
+					   "Can not put a VLAN on a LAG port");
+			return -EINVAL;
+		}
+		break;
+
+	case NETDEV_CHANGEUPPER:
+		upper = cu_info->upper_dev;
+		if (netif_is_bridge_master(upper)) {
+			if (cu_info->linking)
+				return prestera_bridge_port_join(upper, port,
+								 extack);
+			else
+				prestera_bridge_port_leave(upper, port);
+		} else if (netif_is_lag_master(upper)) {
+			if (cu_info->linking)
+				return prestera_lag_port_add(port, upper);
+			else
+				prestera_lag_port_del(port);
+		}
+		break;
+
+	case NETDEV_CHANGELOWERSTATE:
+		return prestera_netdev_port_lower_event(dev, event, ptr);
+	}
+
+	return 0;
+}
+
+static int prestera_netdevice_lag_event(struct net_device *lag_dev,
+					unsigned long event, void *ptr)
+{
+	struct net_device *dev;
+	struct list_head *iter;
+	int err;
+
+	netdev_for_each_lower_dev(lag_dev, dev, iter) {
+		if (prestera_netdev_check(dev)) {
+			err = prestera_netdev_port_event(lag_dev, dev, event,
+							 ptr);
+			if (err)
+				return err;
+		}
+	}
+
+	return 0;
+}
+
+static int prestera_netdev_event_handler(struct notifier_block *nb,
+					 unsigned long event, void *ptr)
+{
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
+	int err = 0;
+
+	if (prestera_netdev_check(dev))
+		err = prestera_netdev_port_event(dev, dev, event, ptr);
+	else if (netif_is_lag_master(dev))
+		err = prestera_netdevice_lag_event(dev, event, ptr);
+
+	return notifier_from_errno(err);
+}
+
+struct prestera_mdb_entry *
+prestera_mdb_entry_create(struct prestera_switch *sw,
+			  const unsigned char *addr, u16 vid)
+{
+	struct prestera_flood_domain *flood_domain;
+	struct prestera_mdb_entry *mdb_entry;
+
+	mdb_entry = kzalloc(sizeof(*mdb_entry), GFP_KERNEL);
+	if (!mdb_entry)
+		goto err_mdb_alloc;
+
+	flood_domain = prestera_flood_domain_create(sw);
+	if (!flood_domain)
+		goto err_flood_domain_create;
+
+	mdb_entry->sw = sw;
+	mdb_entry->vid = vid;
+	mdb_entry->flood_domain = flood_domain;
+	ether_addr_copy(mdb_entry->addr, addr);
+
+	if (prestera_hw_mdb_create(mdb_entry))
+		goto err_mdb_hw_create;
+
+	return mdb_entry;
+
+err_mdb_hw_create:
+	prestera_flood_domain_destroy(flood_domain);
+err_flood_domain_create:
+	kfree(mdb_entry);
+err_mdb_alloc:
+	return NULL;
+}
+
+void prestera_mdb_entry_destroy(struct prestera_mdb_entry *mdb_entry)
+{
+	prestera_hw_mdb_destroy(mdb_entry);
+	prestera_flood_domain_destroy(mdb_entry->flood_domain);
+	kfree(mdb_entry);
+}
+
+struct prestera_flood_domain *
+prestera_flood_domain_create(struct prestera_switch *sw)
+{
+	struct prestera_flood_domain *domain;
+
+	domain = kzalloc(sizeof(*domain), GFP_KERNEL);
+	if (!domain)
+		return NULL;
+
+	domain->sw = sw;
+
+	if (prestera_hw_flood_domain_create(domain)) {
+		kfree(domain);
+		return NULL;
+	}
+
+	INIT_LIST_HEAD(&domain->flood_domain_port_list);
+
+	return domain;
+}
+
+void prestera_flood_domain_destroy(struct prestera_flood_domain *flood_domain)
+{
+	WARN_ON(!list_empty(&flood_domain->flood_domain_port_list));
+	WARN_ON_ONCE(prestera_hw_flood_domain_destroy(flood_domain));
+	kfree(flood_domain);
+}
+
+int
+prestera_flood_domain_port_create(struct prestera_flood_domain *flood_domain,
+				  struct net_device *dev,
+				  u16 vid)
+{
+	struct prestera_flood_domain_port *flood_domain_port;
+	bool is_first_port_in_list = false;
+	int err;
+
+	flood_domain_port = kzalloc(sizeof(*flood_domain_port), GFP_KERNEL);
+	if (!flood_domain_port) {
+		err = -ENOMEM;
+		goto err_port_alloc;
+	}
+
+	flood_domain_port->vid = vid;
+
+	if (list_empty(&flood_domain->flood_domain_port_list))
+		is_first_port_in_list = true;
+
+	list_add(&flood_domain_port->flood_domain_port_node,
+		 &flood_domain->flood_domain_port_list);
+
+	flood_domain_port->flood_domain = flood_domain;
+	flood_domain_port->dev = dev;
+
+	if (!is_first_port_in_list) {
+		err = prestera_hw_flood_domain_ports_reset(flood_domain);
+		if (err)
+			goto err_prestera_mdb_port_create_hw;
+	}
+
+	err = prestera_hw_flood_domain_ports_set(flood_domain);
+	if (err)
+		goto err_prestera_mdb_port_create_hw;
+
+	return 0;
+
+err_prestera_mdb_port_create_hw:
+	list_del(&flood_domain_port->flood_domain_port_node);
+	kfree(flood_domain_port);
+err_port_alloc:
+	return err;
+}
+
+void
+prestera_flood_domain_port_destroy(struct prestera_flood_domain_port *port)
+{
+	struct prestera_flood_domain *flood_domain = port->flood_domain;
+
+	list_del(&port->flood_domain_port_node);
+
+	WARN_ON_ONCE(prestera_hw_flood_domain_ports_reset(flood_domain));
+
+	if (!list_empty(&flood_domain->flood_domain_port_list))
+		WARN_ON_ONCE(prestera_hw_flood_domain_ports_set(flood_domain));
+
+	kfree(port);
+}
+
+struct prestera_flood_domain_port *
+prestera_flood_domain_port_find(struct prestera_flood_domain *flood_domain,
+				struct net_device *dev, u16 vid)
+{
+	struct prestera_flood_domain_port *flood_domain_port;
+
+	list_for_each_entry(flood_domain_port,
+			    &flood_domain->flood_domain_port_list,
+			    flood_domain_port_node)
+		if (flood_domain_port->dev == dev &&
+		    vid == flood_domain_port->vid)
+			return flood_domain_port;
+
+	return NULL;
+}
+
+static int prestera_netdev_event_handler_register(struct prestera_switch *sw)
+{
+	sw->netdev_nb.notifier_call = prestera_netdev_event_handler;
+
+	return register_netdevice_notifier(&sw->netdev_nb);
+}
+
+static void prestera_netdev_event_handler_unregister(struct prestera_switch *sw)
+{
+	unregister_netdevice_notifier(&sw->netdev_nb);
+}
+
+static int prestera_switch_init(struct prestera_switch *sw)
+{
+	int err;
+
+	sw->np = sw->dev->dev->of_node;
+
+	err = prestera_hw_switch_init(sw);
+	if (err) {
+		dev_err(prestera_dev(sw), "Failed to init Switch device\n");
+		return err;
+	}
+
+	rwlock_init(&sw->port_list_lock);
+	INIT_LIST_HEAD(&sw->port_list);
+
+	err = prestera_switch_set_base_mac_addr(sw);
+	if (err)
+		return err;
+
+	err = prestera_netdev_event_handler_register(sw);
+	if (err)
+		return err;
+
+	err = prestera_router_init(sw);
+	if (err)
+		goto err_router_init;
+
+	err = prestera_switchdev_init(sw);
+	if (err)
+		goto err_swdev_register;
+
+	err = prestera_rxtx_switch_init(sw);
+	if (err)
+		goto err_rxtx_register;
+
+	err = prestera_event_handlers_register(sw);
+	if (err)
+		goto err_handlers_register;
+
+	err = prestera_counter_init(sw);
+	if (err)
+		goto err_counter_init;
+
+	err = prestera_acl_init(sw);
+	if (err)
+		goto err_acl_init;
+
+	err = prestera_span_init(sw);
+	if (err)
+		goto err_span_init;
+
+	err = prestera_devlink_traps_register(sw);
+	if (err)
+		goto err_dl_register;
+
+	err = prestera_lag_init(sw);
+	if (err)
+		goto err_lag_init;
+
+	err = prestera_create_ports(sw);
+	if (err)
+		goto err_ports_create;
+
+	prestera_devlink_register(sw);
+	return 0;
+
+err_ports_create:
+	prestera_lag_fini(sw);
+err_lag_init:
+	prestera_devlink_traps_unregister(sw);
+err_dl_register:
+	prestera_span_fini(sw);
+err_span_init:
+	prestera_acl_fini(sw);
+err_acl_init:
+	prestera_counter_fini(sw);
+err_counter_init:
+	prestera_event_handlers_unregister(sw);
+err_handlers_register:
+	prestera_rxtx_switch_fini(sw);
+err_rxtx_register:
+	prestera_switchdev_fini(sw);
+err_swdev_register:
+	prestera_router_fini(sw);
+err_router_init:
+	prestera_netdev_event_handler_unregister(sw);
+	prestera_hw_switch_fini(sw);
+
+	return err;
+}
+
+static void prestera_switch_fini(struct prestera_switch *sw)
+{
+	prestera_devlink_unregister(sw);
+	prestera_destroy_ports(sw);
+	prestera_lag_fini(sw);
+	prestera_devlink_traps_unregister(sw);
+	prestera_span_fini(sw);
+	prestera_acl_fini(sw);
+	prestera_counter_fini(sw);
+	prestera_event_handlers_unregister(sw);
+	prestera_rxtx_switch_fini(sw);
+	prestera_switchdev_fini(sw);
+	prestera_router_fini(sw);
+	prestera_netdev_event_handler_unregister(sw);
+	prestera_hw_switch_fini(sw);
+	of_node_put(sw->np);
+}
+
+int prestera_device_register(struct prestera_device *dev)
+{
+	struct prestera_switch *sw;
+	int err;
+
+	sw = prestera_devlink_alloc(dev);
+	if (!sw)
+		return -ENOMEM;
+
+	dev->priv = sw;
+	sw->dev = dev;
+
+	err = prestera_switch_init(sw);
+	if (err) {
+		prestera_devlink_free(sw);
+		return err;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL(prestera_device_register);
+
+void prestera_device_unregister(struct prestera_device *dev)
+{
+	struct prestera_switch *sw = dev->priv;
+
+	prestera_switch_fini(sw);
+	prestera_devlink_free(sw);
+}
+EXPORT_SYMBOL(prestera_device_unregister);
+
+static int __init prestera_module_init(void)
+{
+	prestera_wq = alloc_workqueue("prestera", 0, 0);
+	if (!prestera_wq)
+		return -ENOMEM;
+
+	prestera_owq = alloc_ordered_workqueue("prestera_ordered", 0);
+	if (!prestera_owq) {
+		destroy_workqueue(prestera_wq);
+		return -ENOMEM;
+	}
+
+	return 0;
+}
+
+static void __exit prestera_module_exit(void)
+{
+	destroy_workqueue(prestera_wq);
+	destroy_workqueue(prestera_owq);
+}
+
+module_init(prestera_module_init);
+module_exit(prestera_module_exit);
+
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_DESCRIPTION("Marvell Prestera switch driver");